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      12-24-2008, 02:05 AM   #9
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Drives: M3, 1M
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Originally Posted by JuniorM3 View Post
A friend of mine works at a European chip chuning branch.

He gave me a call lastnight....he just received the "motorsport' engine program for my E92 M3.

Now the car backfires on downshifts!!

Fuck! You can really hear explosions in the airbox.!
I have to check the airfilter...maybe it blew off?

Actually i think it's cool!

Anybody else have the same?
I don't see what is cool about it ? You just slightly ruined your ECU soft ...
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